Studies to Determine the Electrical and Physical Properties of Aircraft Lubricating Oils

Abstract

A study was made of various grades of aircraft lubricating oils to assist in evaluating the capacitance type fuel quantity gage for use with oils. Measurements of dielectric constant, dissipation factor, and density were made on 144 new and used specimens of aircraft lubricating oils of grades 1100, 1080, 1065, 1010 and 1005 under the influence of changing frequency and temperature. Special studies were made to determine the effects of dilution with aviation fuel, the effect of additive compounds, and the effect of oil clinging to the sides of the sensing element of the gage. Used oil specimens were found to have substantially higher dielectric constants and dissipation factors than the corresponding new oil specimens. Dissipation factors as high as 5.020 were detected in some used specimens. Addition of various additive compounds to a base oil produced a significant change in the dielectric properties of the mixture.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1952
Accession Number
ADA075879

Entities

People

  • Joseph L. Radnik

Organizations

  • IIT Research Institute

Tags

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Aviation Fuels
  • Capillary Electrophoresis
  • Conventional Prompt Strike
  • Dielectric Permittivity
  • Dielectric Properties
  • Dissipation Factor
  • Engineering
  • Equations
  • Lubricating Oils
  • Materials
  • Materials Laboratories
  • Materials Science
  • Physical Properties
  • Plastic Explosives
  • Temperature Coefficients

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  • Materials Science and Engineering.
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